According to The study, published in the journal Psychological ScienceMen are LESS
attracted to women on their periods.

According to the survey done by Professor Pine
from the University of Hertfordshire, Period turns women
into a shopaholics. So they shop more 10 days before their periods begin.

According to a study published in the journal Ethology, periods
affects the way their voice sounds. The reason is-"Cells
from the larynx and vagina are very similar and show similar hormone receptors."In
the case of "vicarious menstruation", Periods can make women bleed from OTHER
parts of their body—not just the uterus.There are
a lot of women who have back or vein pain with their period. This could be
a sign of high estrogen and can be serious too.